| Main features | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Model | Océanis 31 | Océanis 31 | Océanis 31 |
Version | Deep draft | Shoal draft | Keel and centerboard |
Hull type | Monohull | Monohull | Monohull |
Category | Cruising sailboat | Cruising sailboat | Cruising sailboat |
Sailboat builder | Bénéteau | Bénéteau | Bénéteau |
Sailboat designer | |||
Sailboat range | |||
Country | France | France | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester |
First built hull | 2007 | 2007 | 2007 |
Last built hull | 2019 | 2019 | 2019 |
Appendages | Keel : L-shaped keel (with bulb) | Keel : L-shaped keel (with bulb) | Centerboard : pivoting centerboard in the keel |
Helm | Single helm wheel | Single helm wheel | Single helm wheel |
Rudder | Single spade rudder | Single spade rudder | Twin spade rudders |
Unsinkable | No | No | No |
Trailerable | No | No | No |
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m | B | B | B |
Standard public price ex. VAT (indicative only) | 93480 2017 | 93480 2017 | 93480 2017 |
| Main dimensions | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Overall length | 31’ 8”9.66 m | 31’ 8”9.66 m | 31’ 8”9.66 m |
Hull length | 30’ 6”9.3 m | 30’ 6”9.3 m | 30’ 6”9.3 m |
Waterline length | 29’ 2”8.89 m | 29’ 2”8.89 m | 29’ 2”8.89 m |
Beam (width) | 11’ 1”3.39 m | 11’ 1”3.39 m | 11’ 1”3.39 m |
Draft | 5’ 11”1.8 m | 4’ 4”1.3 m | 7’ 1”2.17 m |
Draft when appendages up | 3’ 1”0.95 m | ||
Mast height from DWL | 46’ 7”14.2 m | 46’ 7”14.2 m | 46’ 7”14.2 m |
Light displacement (MLC) | 10692 lb4850 kg | 10913 lb4950 kg | 10692 lb4850 kg |
Ballast weight | 2191 lb994 kg | 2405 lb1091 kg | 2191 lb994 kg |
Ballast type | Cast iron | Cast iron | Cast iron exterior ballast with steel centerboard |
| Rig and sails | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Upwind sail area | 530 ft²49.2 m² | 530 ft²49.2 m² | 530 ft²49.2 m² |
Downwind sail area | 1287 ft²119.6 m² | 1287 ft²119.6 m² | 1287 ft²119.6 m² |
Mainsail area | 265 ft²24.6 m² | 265 ft²24.6 m² | 265 ft²24.6 m² |
Genoa area | 265 ft²24.6 m² | 265 ft²24.6 m² | 265 ft²24.6 m² |
Symmetric spinnaker area | 1023 ft²95 m² | 1023 ft²95 m² | 1023 ft²95 m² |
Asymmetric spinnaker area | 643 ft²59.7 m² | 643 ft²59.7 m² | 643 ft²59.7 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 38’ 8”11.8 m | 38’ 8”11.8 m | 38’ 8”11.8 m |
J iFore triangle base (from mast foot to bottom of forestay) | 12’3.67 m | 12’3.67 m | 12’3.67 m |
P iMainsail hoist measurement (from tack to head) | 35’ 10”10.9 m | 35’ 10”10.9 m | 35’ 10”10.9 m |
E iMainsail foot measurement (from tack to clew) | 12’ 10”3.9 m | 12’ 10”3.9 m | 12’ 10”3.9 m |
Rigging type | Sloop Marconi fractional | Sloop Marconi fractional | Sloop Marconi fractional |
Mast configuration | Deck stepped mast | Deck stepped mast | Deck stepped mast |
Rotating spars | No | No | No |
Number of levels of spreaders | 1 | 1 | 1 |
Spreaders angle | Swept-back | Swept-back | Swept-back |
Spars construction | Aluminum spars | Aluminum spars | Aluminum spars |
Standing rigging | 1x19 strand wire continuous | 1x19 strand wire continuous | 1x19 strand wire continuous |
| Performances | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Upwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat. | 185 ft²/T17.17 m²/T | 182 ft²/T16.94 m²/T | 185 ft²/T17.17 m²/T |
Downwind sail area to displacement iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. | 449 ft²/T41.74 m²/T | 443 ft²/T41.18 m²/T | 449 ft²/T41.74 m²/T |
Displacement-length ratio (DLR) iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat. | 195 | 200 | 195 |
Ballast ratio iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.The higher the ballast ratio is, the greater is the stability. | 20 % | 22 % | 20 % |
Critical hull speed iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34. | 7.24 knots | 7.24 knots | 7.24 knots |
| Auxiliary engine | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Engine(s) | 1 inboard engine | 1 inboard engine | 1 inboard engine |
Engine(s) power | 21 HP | 21 HP | 21 HP |
Fuel type | Diesel | Diesel | Diesel |
Fuel tank capacity | 34.3 gal130 liters | 34.3 gal130 liters | 34.3 gal130 liters |
| Accommodations and layout | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Cockpit | Closed aft cockpit | Closed aft cockpit | Closed aft cockpit |
Cabin(s) | 2 | 2 | 2 |
Berth(s) (min./max.) | 4 / 6 | 4 / 6 | 4 / 6 |
Head(s) | 1 | 1 | 1 |
Freshwater tank capacity | 34.3 gal130 liters | 34.3 gal130 liters | 34.3 gal130 liters |
Holding tank capacity | 21.1 gal80 liters | 21.1 gal80 liters | 21.1 gal80 liters |
Fridge/ice-box capacity | 26.4 gal100 liters | 26.4 gal100 liters | 26.4 gal100 liters |
Boiler capacity | 6.6 gal25 liters | 6.6 gal25 liters | 6.6 gal25 liters |
Maximum headroom | 6’ 1”1.85 m | 6’ 1”1.85 m | 6’ 1”1.85 m |
Galley headroom | 5’ 10”1.77 m | 5’ 10”1.77 m | 5’ 10”1.77 m |
Head headroom | 6’1.84 m | 6’1.84 m | 6’1.84 m |
| Saloon | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Maximum headroom | 5’ 10”1.77 m | 5’ 10”1.77 m | 5’ 10”1.77 m |
| Fore cabin | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Maximum headroom | 5’ 10”1.77 m | 5’ 10”1.77 m | 5’ 10”1.77 m |
Berth length | 6’ 8”2.03 m | 6’ 8”2.03 m | 6’ 8”2.03 m |
Berth width (head/feet) | 5’ 5”1.64 m / 1’ 1”0.34 m | 5’ 5”1.64 m / 1’ 1”0.34 m | 5’ 5”1.64 m / 1’ 1”0.34 m |
| Aft cabin | Océanis 31 Deep draft | Océanis 31 Shoal draft | Océanis 31 Keel and centerboard |
Maximum headroom | 6’1.84 m | 6’1.84 m | 6’1.84 m |
Berth length | 7’ 4”2.24 m | 7’ 4”2.24 m | 7’ 4”2.24 m |
Berth width (head/feet) | 5’ 6”1.69 m / 5’ 6”1.69 m | 5’ 6”1.69 m / 5’ 6”1.69 m | 5’ 6”1.69 m / 5’ 6”1.69 m |